New mozilla-firefox packages are available for Slackware 13.37, 14.0,
and -current to fix a security issue.

Here are the details from the Slackware 14.0 ChangeLog:
+--------------------------+
patches/packages/mozilla-firefox-16.0.1-i486-1_slack14.0.txz: Upgraded.
This update fixes a security vulnerability that could allow a malicious
site to potentially determine which websites users have visited and have
access to the URL or URL parameters.
(* Security fix *)
+--------------------------+

Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project! :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.